Although theoretically, as long as the normal person, as long as you are willing to adhere to, his flexibility can be enhanced through exercise, but 40 years old can't practice gymnastics, huh, (you think you're Li Ning ah ----)
But if it is the other kinds of dance, it is very normal, such as mechanical dance, or Latin dance, there are a lot of people on the age of people dance, I have seen the older man jumping! I've seen older men doing poppin', and I've seen them doing it with a great sense of humor.